If your network (Ethernet) card hasn't been mentioned yet and its
bus system (that's the way the cards talks to the other components
of your computer) is ISA (as opposed to EISA, VLB or PCI), say Y.
Make sure you know the name of your card. Read the Ethernet-HOWTO,
available from <http://www.tldp.org/docs.html#howto>.

If unsure, say Y.

Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause the configurator to skip all
the remaining ISA network card questions. If you say Y, you will be
asked for your specific card in the following questions.